74075864191 has 16 divisors (see below), whose sum is σ = 85756867840. Its totient is φ = 62673004800.

The previous prime is 74075864189. The next prime is 74075864207. The reversal of 74075864191 is 19146857047.

It is a happy number.

It is not a de Polignac number, because 74075864191 - 2¹ = 74075864189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74075864101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113416 + ... + 401266.

It is an arithmetic number, because the mean of its divisors is an integer number (5359804240).

Almost surely, 2^74075864191 is an apocalyptic number.

74075864191 is a deficient number, since it is larger than the sum of its proper divisors (11681003649).

74075864191 is a wasteful number, since it uses less digits than its factorization.

74075864191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288334.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 74075864191 in words is "seventy-four billion, seventy-five million, eight hundred sixty-four thousand, one hundred ninety-one".